661031 divided by 99 
The aim is to understand the frequency of 99 in 661031.

Advancing to step 1:
If we divide 6 by 99, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 99

Moving on to step 2:
If we divide 66 by 99, we get 0 and a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Fetch the next digit (1) from the dividend, attach it to 66 and continue: 661 / 99

On to step 3:
99 can be fit into 661 6 times, resulting in a remainder of 67.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 67 after subtracting 594 from 661.
Bring next digit (0) of the dividend behind the 67 and repeat the process: 670 / 99

On to step 4:
99 goes into 670 6 times with a remainder of 76.
Use 6 as the next digit of our solution. 
Result so far: 66.0
Subtract 594 from 670 to get 76.
Fetch the next digit (3) from the dividend, attach it to 76 and continue: 763 / 99

Let's proceed to step 5:
The number 99 fits into 763 7 times, leaving a remainder of 70.
Put 7 as the next digit of the answer. 
Result so far: 667.0
Subtracting 693 from 763 leaves us with 70.
Take the next digit (1) from the dividend and append it to 70, then repeat: 701 / 99

Going ahead to step 6:
99 goes into 701 7 times with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 6677.0
Subtract 693 from 701 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 7:
99 goes into 80 0 times with a remainder of 80.
The next digit of our result is 0. 
Result so far: 6677.0
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 8:
When dividing 800 by 99, we get 8 with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 6677.08
Deduct 792 from 800 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 9:
80 divided by 99 is 0 with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 6677.08
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 10:
When dividing 800 by 99, we get 8 with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 6677.0808
Deduct 792 from 800 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
99 goes into 80 0 times with a remainder of 80.
The next digit of our result is 0. 
Result so far: 6677.0808
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 12:
800 divided by 99 is 8 with a remainder of 8.
The next digit of our result is 8. 
Result so far: 6677.080808
If we take 792 away from 800, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 13:
When dividing 80 by 99, we get 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 6677.080808
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 14:
800 divided by 99 is 8 with a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 6677.08080808
Subtracting 792 from 800 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 6677.08080808, and the remainder is 8e-09.